Process for producing sintered magnesia

US5344599A · kind A · utility

Assignee

• Vietscher Magnesitwerke-Actien-Gesellschaft · AT

Inventors

• Michael Grill · Overland, US
• Josef Deutsch · Leoben, AT

Key dates

• Filing date: Mar 5, 1993
• Grant date: Sep 6, 1994
• Expiry date: Mar 5, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B35/043
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A process for producing coarse-grained sintered magnesia. The starting material is an active, reactive pulverulent magnesium oxide having a grain size of <0.15 mm and green compacts are formned from this magnesium oxide by pelletising on a granulating disc at a material throughput of less than 250 kg of MgO/m.sup.2 disc area and per hour, which are subsequently subjected to sinter-firing at high temperature.